Digitl Audio out not functionaing on Acer M5630

I connect the digital audio cable to the stereo but an not sure how to direct the PC to send audio through that port. I tried in "sound settings but the three options there all did not work: Realtek Digital Output, Speakers or Digital Output Device (HDMI).

I don't think the problem is a setting on the PC. Most likely, it's your home stereo setting. Usually, you need to set it to auxiliary. That's what I do with mine. However, I'm not using HDMI. I use the lime green jack on the sound card to the aux input on the amp.

The odd thing is, the digital out port from the PC does not seem to come directly from the sound card.

When hooking this up, i have 2 digital inputs going to the stereo: 1 from tv and teh other from the computer. The stereo gives you the option to select the input for the sound (Analoug, Optical 1 or Optical 2). So for the TV, i chose optical 1...worked like a charm, For the PC, using optical 2 input...not so much. the Stereo did briefly show "locked" for this...not sure what that means and cant seem to find it in the manual.

"Anyone familiar with this PC?"You have listed no specs at all, so we have no idea what your setup is.

Auxiliry input on a reveiver is usually factory programed to be an analog input. I would leave that alone for now.

Start by playing some music or a video on your computer, Now just for trouble shooting, you know the TV HDMI works on your receiver so lets use that one for now. Unplug the TV HDMI cable on your receiver and plug in the HDMI cable from the computer. Open up the audio mixer control panel on your computer and make sure it's outputting audio to the HDMI port.

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